Some links for you:-
Compatibility Considerations and Version Changes
http://www.gotdotnet.com/team/changeinfo/default.aspx
Side-by-Side Execution of the .NET Framework
http://msdn.microsoft.com/vstudio/de...n-us/dnnetdep/
html/sidexsidenet.asp
And with regard ASP.NET applications:-
Configuring an ASP.NET Application for an ASP.NET Version
http://msdn.microsoft.com/library/de...us/cpguide/htm
l/cpconconfiguringaspnetapplicationforaspnetversion. asp
Andy Mortimer [MS]
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